I took me a while to figure this one out - I have a massive network with approx. 20 subnets. I have old and new Sharp copier everywhere which have always scanned fine. I have install an MS server 2012 R2 (as a scan repository - SMB)recently and everything still worked fine. I get a power outage one day and now no one can scan. I tried everything under the sun including firewall OFF everywhere. clear routing no rules just plain out WIDE open. still error 80-000. Turned it all off - voila ALL copiers where able to scan to my server again. hope this help someone.
EXAMPLE from my switch:
my solution: I had one HP managed (semi) switch at the main office where my server sat. The switch had turned on all off the security setting that HP has.
Storm Control Enabled Disabled
Auto DoS Features Auto DoS Prevent Land Attack Prevent TCP Blat Attack Prevent UDP Blat Attack Prevent Invalid TCP Flags Attack Prevent TCP Fragment Attack Check First Fragment Only Prevent Smurf Attack Prevent Ping Flood Attack Prevent SYN Flood Attack
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